Fusion welding and film cutting device of wrapping film packer

Abstract

The utility model relates to the technical field of packaging machines, in particular to a welding and film cutting device of a wrapping film packaging machine. Comprising a base body, a lifting driving mechanism, a fusion cutting bottom die arranged at the lifting end of the lifting driving mechanism, a translation frame arranged on the outer side of the fusion cutting bottom die in a translation mode, a hot melting mechanism used for being matched with the fusion cutting bottom die, a film breaking mechanism connected to the translation frame and located on the side face of the hot melting mechanism, and a swing arm rotationally connected to the base body. The swing driving mechanism is arranged on the seat body and used for driving the swing arm to swing and switch between a vertical state and a horizontal state, the translation frame is arranged at the translation end of the translation driver, and the translation driver is used for driving the translation frame and the hot melting mechanism to be close to or away from the fusion cutting bottom die. During hot melting and film cutting, the film material is supported through the melting and cutting bottom die, the quality and stability of hot melting and film cutting are improved, and the winding and film coating firmness of a product is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a welding and film cutting device for a stretch film packaging machine. Background Art

[0002] In the existing patent, a Chinese patent document with the application number 202122920225.7 discloses a film breaking and ironing device for a stretch film packaging machine, which includes a machine base. One end of the upper side of the machine base is provided with a swinging bracket. The bracket is provided with a film clamping mechanism, a film breaking assembly and an ironing assembly. The film clamping mechanism is fixed on one side of the machine base close to the film breaking assembly. The film clamping mechanism includes a base. The feature is that: on the upper end of the base, a swinging first clamping plate and a second clamping plate are arranged oppositely. The upper ends of the first clamping plate and the second clamping plate are free ends, and the lower ends are both hinged to the base through a rotating shaft. A swing rod is fixed on the rotating shaft. A telescopic cylinder hinged to the swing rod is arranged in the base. A film clamping gap is formed between the first clamping plate and the second clamping plate. C-shaped film clamping frames are arranged on the same side of the first clamping plate and the second clamping plate. The open ends of the C-shaped film clamping frames all face the film clamping gap, and the side ends of the two C-shaped film clamping frames are arranged alternately. The ironing assembly in this patent document directly irons the film material wound on the product. Since there is no rigid support during ironing, it is difficult to ensure the quality and stability of ironing, and the phenomenon that the film material is not ironed in place easily occurs. Therefore, the defect is very obvious and a solution is urgently needed. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a welding and film cutting device for a stretch film packaging machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A welding and film cutting device for a stretch film packaging machine, which includes a seat body, a lifting drive mechanism installed on the seat body, a welding and cutting bottom die installed at the lifting end of the lifting drive mechanism, a translation frame arranged laterally outside the welding and cutting bottom die, a hot melting mechanism installed on the translation frame and used to cooperate with the welding and cutting bottom die, a film breaking mechanism connected to the translation frame and located on the side of the hot melting mechanism, a swing arm rotatably connected to the seat body, a swing drive mechanism installed on the seat body and used to drive the swing arm to swing and switch between a vertical state and a horizontal state, and a translation driver installed on the swing arm. The translation frame is installed at the translation end of the translation driver, and the translation driver is used to drive the translation frame to drive the hot melting mechanism to approach or move away from the welding and cutting bottom die.

[0006] Further, the hot melting mechanism includes a fixed seat installed on the translation frame, a hot melting head elastically slidably connected to the fixed seat, and an elastic member connected between the fixed seat and the hot melting head.

[0007] Further, a shaft rod is provided on one side of the hot melt head close to the fixed seat, the fixed seat is provided with a smooth groove, the shaft rod penetrates through the smooth groove, and the shaft rod can translate and / or rotate in the smooth groove.

[0008] Further, elastic members are symmetrically arranged on the upper and lower sides of the shaft rod.

[0009] Further, fixing holes are recessed on one side of the fixed seat and the hot melt head close to each other, and both ends of the elastic member are respectively accommodated in the corresponding fixing holes.

[0010] Further, the swing driving mechanism includes a swing driver and a special-shaped rotating member. The middle part of the special-shaped rotating member is rotatably connected to the seat body, the bottom end of the swing arm is fixedly connected to the top end of the special-shaped rotating member, the main body of the swing driver is installed on the seat body, the driving end of the swing driver is hinged to the bottom end of the special-shaped rotating member, and the swing driver is used to drive the special-shaped rotating member to rotate reciprocally.

[0011] Further, the welding and film cutting device of the winding film packing machine further includes a film clamping mechanism installed on the seat body, and the film breaking mechanism is located between the film clamping mechanism and the hot melting mechanism.

[0012] The beneficial effects of the present utility model: In practical applications, the winding film packing machine winds and wraps the product with a film. Before the winding film packing machine is about to complete the winding and wrapping of the product, the lifting drive mechanism drives the welding and cutting bottom die to rise. At this time, the winding film packing machine continues to wind and wrap the product, and the film material will wind around the outside of the welding and cutting bottom die. When it is necessary to weld and cut the film material, the swing drive mechanism drives the swing arm to swing from the horizontal state to the vertical state, so that the hot melting mechanism and the welding and cutting bottom die are arranged opposite to each other. Then, the translation driver drives the translation frame to drive the hot melting mechanism and the film breaking mechanism to translate close to the welding and cutting bottom die until the hot melting mechanism presses the film material against the welding and cutting bottom die to perform hot melting welding on the film material, and the film breaking mechanism cuts the film material, so that the cut of the film material wound on the product is hot melted on the wound and packed film material. Finally, the translation driver drives the translation frame to drive the hot melting mechanism and the film breaking mechanism to translate in a direction away from the welding and cutting bottom die, the swing drive mechanism drives the swing arm to drive the translation frame to swing from the vertical state to the horizontal state, and the lifting drive mechanism drives the welding and cutting bottom die to descend, so that the welding and cutting bottom die is withdrawn from the film material to complete the winding and wrapping of the product. When the present utility model performs hot melting and film cutting, the welding and cutting bottom die supports the film material, improving the quality and stability of hot melting and film cutting, and ensuring the firmness of winding and wrapping the product. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0014] Figure 2 is a three-dimensional structural schematic diagram of the translation frame, the hot melting mechanism, the end face mechanism, the swing arm, the translation driver and the swing drive mechanism of the present utility model.

[0015] Figure 3 This is a schematic perspective view of the hot-melt mechanism of the present utility model.

[0016] Description of the reference numerals in the drawings:

[0017] 1. Base body; 2. Lifting drive mechanism; 3. Melting and cutting bottom die; 4. Translation frame; 5. Hot-melt mechanism; 6. Film-breaking mechanism; 7. Swing arm; 8. Swing drive mechanism; 9. Translation driver; 10. Fixed seat; 11. Hot-melt head; 12. Elastic member; 13. Shaft rod; 14. Smooth groove; 15. Swing driver; 16. Special-shaped rotating member; 17. Film-clamping mechanism. Detailed implementation manners

[0018] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the implementation manners does not limit the present utility model.

[0019] As Figures 1 to 3 shown, a welding and film-cutting device for a winding film packing machine provided by the present utility model includes a base body 1, a lifting drive mechanism 2 installed on the base body 1, a melting and cutting bottom die 3 installed at the lifting end of the lifting drive mechanism 2, a translation frame 4 arranged in translation on the outer side of the melting and cutting bottom die 3, a hot-melt mechanism 5 installed on the translation frame 4 and used to cooperate with the melting and cutting bottom die 3, a film-breaking mechanism 6 connected to the translation frame 4 and located on the side of the hot-melt mechanism 5, a swing arm 7 rotatably connected to the base body 1, a swing drive mechanism 8 installed on the base body 1 and used to drive the swing arm 7 to swing and switch between a vertical state and a horizontal state, and a translation driver 9 installed on the swing arm 7. The translation frame 4 is installed at the translation end of the translation driver 9, and the translation driver 9 is used to drive the translation frame 4 to drive the hot-melt mechanism 5 to approach or move away from the melting and cutting bottom die 3. Specifically, the translation driver 9 can adopt a cylinder, and the lifting drive mechanism 2 adopts a linear drive module.

[0020] In practical applications, the winding film packing machine winds and wraps the product with a film. Before the winding film packing machine is about to complete the winding and wrapping of the product, the lifting drive mechanism 2 drives the melting and cutting bottom die 3 to rise. At this time, the winding film packing machine continues to wind and wrap the product with the film, and the film material will wind around the outside of the melting and cutting bottom die 3. When it is necessary to melt and cut the film material, the swing drive mechanism 8 drives the swing arm 7 to swing and switch from the horizontal state to the vertical state, so that the hot melting mechanism 5 is arranged opposite to the melting and cutting bottom die 3. Then, the translation driver 9 drives the translation frame 4 to drive the hot melting mechanism 5 and the film cutting mechanism 6 to translate close to the melting and cutting bottom die 3 until the hot melting mechanism 5 presses the film material against the melting and cutting bottom die 3 to perform hot melting connection on the film material, and the film cutting mechanism 6 cuts the film material, so that the cut of the film material wound on the product is hot melted on the wound and packed film material. Finally, the translation driver 9 drives the translation frame 4 to drive the hot melting mechanism 5 and the film cutting mechanism 6 to translate away from the melting and cutting bottom die 3, and the swing drive mechanism 8 drives the swing arm 7 to drive the translation frame 4 to swing and switch from the vertical state to the horizontal state, and the lifting drive mechanism 2 drives the melting and cutting bottom die 3 to descend, so that the melting and cutting bottom die 3 is withdrawn from the film material to complete the winding and wrapping of the product. In the hot melting and cutting of the film of the present utility model, the melting and cutting bottom die 3 supports the film material, improving the quality and stability of the hot melting and cutting of the film and ensuring the firmness of the winding and wrapping of the product.

[0021] In this embodiment, the hot melting mechanism 5 includes a fixed seat 10 installed on the translation frame 4, a hot melting head 11 elastically slidably connected to the fixed seat 10, and an elastic member 12 connected between the fixed seat 10 and the hot melting head 11. In practical applications, the hot melting head 11 cooperates with the melting and cutting bottom die 3 to perform hot melting connection on the film material; during the cooperation between the hot melting head 11 and the melting and cutting bottom die 3, the elastic member 12 plays a role of buffering and protecting, avoiding hard impact collision between the hot melting head 11 and the melting and cutting bottom die 3.

[0022] In this embodiment, a shaft rod 13 is arranged on one side of the hot melting head 11 close to the fixed seat 10, the fixed seat 10 is provided with a smooth groove 14, the shaft rod 13 penetrates through the smooth groove 14, and the shaft rod 13 can translate and / or rotate in the smooth groove 14. During the buffering and protecting process of the elastic member 12, the shaft rod 13 can slide along the smooth groove 14, so that the hot melting head 11 translates relative to the fixed seat 10; when there are problems such as uneven thickness of the wound film material, error in the flatness of the melting and cutting bottom die 3, or error in the flatness of the hot melting head 11, while the elastic member 12 is compressed, the shaft rod 13 can rotate in the smooth groove 14, so that the hot melting head 11 can swing adaptively, enabling the hot melting head 11 to evenly hot melt and cut the film material, ensuring the quality of the hot melted and cut film material.

[0023] In this embodiment, elastic members 12 are symmetrically arranged on the upper and lower sides of the shaft rod 13. This structural design makes the force on the hot melting head 11 uniform and the working stability good.

[0024] In this embodiment, fixing holes are recessed on one side of the fixing base 10 and the hot melt head 11 close to each other, and both ends of the elastic member 12 are respectively accommodated in the corresponding fixing holes. This structural design not only facilitates the disassembly and assembly of the elastic member 12, but also plays a role in positioning the elastic member 12, improving the working stability and position accuracy of the elastic member 12.

[0025] Specifically, the elastic member 12 is a spring, and the number of the hot melt mechanisms 5 is two.

[0026] In this embodiment, the swing drive mechanism 8 includes a swing driver 15 and a special-shaped rotating member 16. The middle of the special-shaped rotating member 16 is rotatably connected to the seat body 1. The bottom end of the swing arm 7 is fixedly connected to the top end of the special-shaped rotating member 16. The main body of the swing driver 15 is installed on the seat body 1, and the driving end of the swing driver 15 is hinged to the bottom end of the special-shaped rotating member 16. The swing driver 15 is used to drive the special-shaped rotating member 16 to rotate reciprocally. Specifically, the swing driver 15 can adopt a cylinder.

[0027] In practical applications, the driving end of the swing driver 15 expands and contracts to drive the special-shaped rotating member 16 to rotate reciprocally, and the reciprocally rotating special-shaped rotating member 16 drives the swing arm 7 to switch between the horizontal state and the vertical state.

[0028] In this embodiment, the film welding and cutting device of the winding film packing machine further includes a film clamping mechanism 17 installed on the seat body 1, and the film breaking mechanism 6 is located between the film clamping mechanism 17 and the hot melt mechanism 5. When the hot melt mechanism 5 hot melts the film material, the film clamping mechanism 17 clamps the film material.

[0029] Specifically, the hot melt head 11 is composed of a heat insulation seat and a hot melt plate.

[0030] Specifically, the film clamping mechanism 17 and the film breaking mechanism 6 can respectively adopt the film clamping mechanism and the film breaking assembly in the Chinese patent document with the application number 202122920225.7, which will not be elaborated here.

[0031] All the technical features in this embodiment can be freely combined according to actual needs.

[0032] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A welding and film cutting device for a winding film packing machine, characterized in that: It includes a seat body (1), a lifting drive mechanism (2) installed on the seat body (1), a melting and cutting bottom die (3) installed at the lifting end of the lifting drive mechanism (2), a translation frame (4) horizontally arranged outside the melting and cutting bottom die (3), a hot melting mechanism (5) installed on the translation frame (4) and used to cooperate with the melting and cutting bottom die (3), a film breaking mechanism (6) connected to the translation frame (4) and located on the side of the hot melting mechanism (5), a swing arm (7) rotatably connected to the seat body (1), a swing drive mechanism (8) installed on the seat body (1) and used to drive the swing arm (7) to swing and switch between a vertical state and a horizontal state, and a translation driver (9) installed on the swing arm (7). The translation frame (4) is installed at the translation end of the translation driver (9), and the translation driver (9) is used to drive the translation frame (4) together with the hot melting mechanism (5) to approach or move away from the melting and cutting bottom die (3).

2. The welding and film cutting device of a winding film packing machine according to claim 1, characterized in that: The hot melting mechanism (5) includes a fixed seat (10) installed on the translation frame (4), a hot melting head (11) elastically and slidably connected to the fixed seat (10), and an elastic member (12) connected between the fixed seat (10) and the hot melting head (11).

3. The welding and film cutting device of a winding film packing machine according to claim 2, characterized in that: A shaft rod (13) is arranged on one side of the hot melting head (11) close to the fixed seat (10). The fixed seat (10) is provided with a smooth groove (14). The shaft rod (13) penetrates through the smooth groove (14), and the shaft rod (13) can translate and / or rotate in the smooth groove (14).

4. The welding and film cutting device of a winding film packing machine according to claim 3, characterized in that: Elastic members (12) are symmetrically arranged on the upper and lower sides of the shaft rod (13).

5. The welding and film cutting device of a winding film packing machine according to claim 2, characterized in that: Both sides of the fixed seat (10) and the hot melting head (11) close to each other are concavely provided with fixing holes, and the two ends of the elastic member (12) are respectively accommodated in the corresponding fixing holes.

6. The welding and film cutting device of a winding film packing machine according to claim 1, characterized in that: The swing drive mechanism (8) includes a swing driver (15) and a special-shaped rotating member (16). The middle part of the special-shaped rotating member (16) is rotatably connected to the seat body (1). The bottom end of the swing arm (7) is fixedly connected to the top end of the special-shaped rotating member (16). The main body of the swing driver (15) is installed on the seat body (1). The driving end of the swing driver (15) is hinged to the bottom end of the special-shaped rotating member (16), and the swing driver (15) is used to drive the special-shaped rotating member (16) to rotate reciprocally.

7. The welding and film cutting device of a winding film packing machine according to claim 1, characterized in that: The welding and film cutting device of the winding film packing machine further includes a film clamping mechanism (17) installed on the seat body (1), and the film breaking mechanism (6) is located between the film clamping mechanism (17) and the hot melting mechanism (5).

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